Electron Configuration
& Orbital Notation
By Quiana Rios
Page 6 Electons in atoms
Steps to write Electron Configuration
The atomic number greater than 18, the sub levels begin to fill out of order. A good approximation of the order of filling can be determined by using the diagonal rule. An easy way to also find the Electron configuration is by counting the exponents.
Example
Steps to write Obital Notation
Guns is the scientist that came up with the "school bus rule".
Electrons fill empty orbitals before pairs(seats).
Lowest energy to highest energy, adding adding electrons can change the energy of the orbital. Full orbitals are absolute best solution, However half filled orbitals have a lower energy and are next best.
Makes them more stable.
Changes the filling order.